Updated on 21st September, 2023 by Martin Astley
Boilers tripping the fuse box is a growing issue many homeowners in the U.K. face. This happens when some problem arises within your boiler or its components, and as a safety mechanism, it trips the R.C.D. switch on your fuse box that trips the electricity. However, older boilers have fewer electrical parts than new, efficient boilers like combi boilers.
Statistical reports from Boiler Switch indicate that 80% of homeowners have combi boilers installed. And many people with combi boilers are facing this issue.
If your combi boiler also keeps tripping the R.C.D. more often, keep reading this blog, as we will tell you the common reasons why your boiler trips the Fuse Box.
Why is My Boiler Tripping the Fuse Box?
Boiler tripping in your fuse box can be due to faulty internal components or leakage. You must thoroughly understand these problems to inspect them and take corrective action.
Let’s discuss them in detail!
The Boiler Tripped the Fuse Box Due to Faulty Components
Faulty elements within the boiler can cause it to draw too much power and trip the R.C.D. This includes issues with the following components:
1. A Faulty Thermostat
A faulty thermostat causes the boiler to overheat by sending incorrect temperature readings. This fault leads to an electrical surge that causes the fuse box to trip. Not only that, but a faulty thermostat can also disrupt the power supply and damage other boiler components.
2. Pressure Relief Valves
A pressure relief valve is another critical component; if it malfunctions, it will increase pressure in the boiler. Due to this increased pressure, the fuse box trips as a safety hazard against potential dangers.
3. Heating Pumps
If your central heating pump is not functioning correctly, it can overload your boiler, making it trip the R.C.D. Also, a malfunctioning central heating pump can disrupt the heating flow around your home and cause severe damage to your boilers.
4. Limescale Buildup
As time passes, limescale builds up in your boiler. Limescale is building up because when hard water is heated, it leaves some minerals behind that build up over time, forming limescale. Limescale buildup makes your boiler trip the R.C.D., reducing efficiency and heating effectiveness.
5. Faulty Wiring Inside the Boiler
Faulty wiring within the boiler is the primary reason your boiler tripped the R.C.D. switch. When the wiring in the boiler becomes damaged and worn, it causes an electrical fault, due to which your boiler trips the fuse box, shutting off the power supply of the boiler.
So far, we have discussed the faulty components that cause your boiler to keep tripping the electrics. Let’s jump to the second reason: leakages in your boiler.
Boiler Tripping Fuse Box Due To Leakages
When a boiler starts to leak, it causes the fuse box to trip, disrupting the system’s functioning.
It is essential to understand the root cause of this problem to prevent it from occurring in the future. Leakage can occur due to corrosion, wear and tear, or improper installation.
When water leaks from the boiler, it can come into contact with the system’s electrical components, leading to a short circuit and the tripping of the fuse box.
How Do You Check Your Boiler For Leaks?
To check for leaks in your boiler, perform the following steps:
- Completely turn off your boiler and let it cool down.
- Check for dripping water coming out of your boiler.
- Check the pressure rating and see whether it is set to the recommended range.
- Inspect pipes and valves and look for any signs of damage.
- If you have found the leakage but can’t locate its source, contact a Gas safety engineer immediately.
Is a Boiler Causing the Fuse Box to Trip in an Emergency?
No, it’s not an emergency! However, you should not ignore this problem, as it can cause long-term damage to your boiler and your home’s power supply. That’s why it is suggested that if your boiler keeps tripping the R.C.D. more often, you should call for professional help.
After reading the above blog, we hope you can inspect the problem behind your boiler tripping the fuse box. If you still can’t find why your boiler is leaking, and all the components are exemplary, as you have a new boiler, then the best step is to contact a Gas Safe engineer and let him inspect the problem.
If you don’t know whom to contact, 24|7 Home Rescue is here. Call us at 0345 3192 247, and one of our representatives will assist you with your problem and, if needed, schedule an appointment with a Gas Safe Engineer.